患者李××,男,41岁。因排尿困难30余年,于1978年12月5日经我院拍片诊断为尿道球部结石而住院。患者于30多年前开始有尿痛、尿急、尿流中断之病史,以后发现尿道后段有玉米大小之硬结,随年龄增长而增长。查体除营养欠佳和尿道球部有结石感硬块外,其他无重要异常。化验检查尿常规 Patient Lee × ×, male, 41 years old. Due to dysuria more than 30 years, on December 5, 1978 by our hospital film diagnosis of urinary tract stones and hospitalization. More than 30 years ago, patients began to have dysuria, urinary urgency, and a history of interruption of urinary flow. Later, they found that there was corn size induration in the posterior urethra, which increased with age. Physical examination in addition to poor nutrition and urinary tract stones have a sense of lumps, the other no important abnormalities. Laboratory tests urine routine